The formation of supercavitation after a high-speed projectile enters water has decisive impact on the underwater ballistic and penetration projectile. In this study, Ansysfluent19.0 simulation software is used to study entry chosen at velocities 300, 400, 500, 600 m/s. cavitation characteristics, trajectories, flow-field characteristics are analyzed for 5.8-mm caliber conical flat head project...

We simulate penetration of large projectiles into dry granular media using two-dimensional soft particle molecular dynamics. We systematically vary the physical parameters of the projectile (density, size, impact energy). Our results confirm the recently observed scaling of the crater depth with impact energy as observed by Uehara et al. (2003) and the effect of constant deceleration of the bal...

Abstract Underwater torpedo interception could be conducted by shell perforation or even warhead impact detonation with high speed projectiles. This work deals the projectile water entry and sequent penetration into underwater whereby both aluminium explosive are numerically studied. The model aluminum validated against test data for penetration. Targets located under 20 cm depth where shells a...

Abstract In order to analyze the influence of material and shape hood medium-caliber PELE warhead on damage effect reinforced concrete wall with projectile, three-dimensional nonlinear dynamic finite element program LS-DYNA was used numerically simulate penetration projectile different shapes materials into 0.25 thick thin target at various velocities. The results show that under same condition...

In this paper, modeling of high speed projectiles with different nose shapes, penetrating into steel fiber reinforced concrete is investigated. This is a novel study because it considers the length to diameter ratio of steel fiber as well as projectile length to diameter ratio and volume fraction of fiber used in concrete matrix on the impact resistance of steel fiber reinforced concrete fibers...